package com.heping.core.codeDesign;

import com.baomidou.mybatisplus.core.exceptions.MybatisPlusException;
import com.baomidou.mybatisplus.core.toolkit.StringPool;
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.InjectionConfig;
import com.baomidou.mybatisplus.generator.config.*;
import com.baomidou.mybatisplus.generator.config.builder.ConfigBuilder;
import com.baomidou.mybatisplus.generator.config.po.TableInfo;
import com.baomidou.mybatisplus.generator.config.rules.FileType;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
import com.baomidou.mybatisplus.generator.engine.FreemarkerTemplateEngine;
import freemarker.template.utility.StringUtil;
import org.apache.commons.lang3.ArrayUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

import java.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

@Component
public class Generate {

    @Value("${code-design.author}")
    private String author;

    @Value("${spring.datasource.url}")
    private String dataSourceUrl;

    @Value("${spring.datasource.driver-class-name}")
    private String dbDriver;

    @Value("${spring.datasource.username}")
    private String dbUserName;

    @Value("${spring.datasource.password}")
    private String dbPwd;

    @Value("${code-design.module-name}")
    private String moduleName;

    @Value("${code-design.parent-pkg}")
    private String parentPkg;

    @Value("${code-design.tables}")
    private String tables;

    @Value("${code-design.root-path}")
    private String rootPath;

    private String delXmlPath;

    public void run() {
        // 代码生成器
        AutoGenerator mpg = new AutoGenerator();

        // 全局配置
        GlobalConfig gc = new GlobalConfig();
        String projectPath = System.getProperty("user.dir");
        gc.setOutputDir(projectPath + this.rootPath);
        gc.setAuthor(this.author);
        gc.setOpen(false);
        // gc.setSwagger2(true); 实体属性 Swagger2 注解
        mpg.setGlobalConfig(gc);

        // 数据源配置
        DataSourceConfig dsc = new DataSourceConfig();
        dsc.setUrl(this.dataSourceUrl);
        // dsc.setSchemaName("public");
        dsc.setDriverName(this.dbDriver);
        dsc.setUsername(this.dbUserName);
        dsc.setPassword(this.dbPwd);
        mpg.setDataSource(dsc);

        // 包配置
        PackageConfig pc = new PackageConfig();
        pc.setModuleName(this.moduleName);
        pc.setParent(this.parentPkg);
        mpg.setPackageInfo(pc);

        // 自定义配置
        InjectionConfig cfg = new InjectionConfig() {
            @Override
            public void initMap() {
                // to do nothing
            }
        };

        // 如果模板引擎是 freemarker
        String templatePath = "/templates/codeDesign/mapper.xml.ftl";
        // 如果模板引擎是 velocity
        // String templatePath = "/templates/mapper.xml.vm";

        // 自定义输出配置
        List<FileOutConfig> focList = new ArrayList();

        Generate generateThat = this;
        // 自定义配置会被优先输出
        focList.add(new FileOutConfig(templatePath) {
            @Override
            public String outputFile(TableInfo tableInfo) {
                // 自定义输出文件名 ， 如果你 Entity 设置了前后缀、此处注意 xml 的名称会跟着发生变化！！
                return projectPath + generateThat.rootPath + "/" + StringUtils.join(generateThat.parentPkg.split("\\."), "/") +"/" +
                        generateThat.moduleName + "/mapper/" +
                        tableInfo.getEntityName() + "Mapper" + StringPool.DOT_XML;
            }
        });
        cfg.setFileCreate(new IFileCreate() {
            @Override
            public boolean isCreate(ConfigBuilder configBuilder, FileType fileType, String filePath) {
                String[] fileInfoArray = filePath.split("/|\\\\");
                String dirName = fileInfoArray[fileInfoArray.length - 2];
                System.out.println("xx:" + filePath + "|" + dirName + "\n");
                if (dirName.equals("xml")) {
                    String[] changeFileName = ArrayUtils.removeAll(fileInfoArray, fileInfoArray.length - 1);
                    generateThat.delXmlPath = StringUtils.join(changeFileName, "/");
                    return false;
                }
                return true;
            }
        });
        cfg.setFileOutConfigList(focList);
        mpg.setCfg(cfg);

        // 配置模板
        TemplateConfig templateConfig = new TemplateConfig();

        // 配置自定义输出模板
        //指定自定义模板路径，注意不要带上.ftl/.vm, 会根据使用的模板引擎自动识别
        templateConfig.setEntity("templates/codeDesign/entity.java");
        templateConfig.setService("templates/codeDesign/service.java");
        templateConfig.setController("templates/codeDesign/controller.java");
        templateConfig.setMapper("templates/codeDesign/mapper.java");
        templateConfig.setServiceImpl("templates/codeDesign/serviceImpl.java");
        templateConfig.setXml("templates/codeDesign/mapper.xml");
        mpg.setTemplate(templateConfig);

        // 策略配置
        StrategyConfig strategy = new StrategyConfig();
        strategy.setNaming(NamingStrategy.underline_to_camel);
        strategy.setColumnNaming(NamingStrategy.underline_to_camel);
//        strategy.setSuperEntityClass("你自己的父类实体,没有就不用设置!");
        strategy.setEntityLombokModel(true);
        strategy.setRestControllerStyle(true);
        // 公共父类
//        strategy.setSuperControllerClass("你自己的父类控制器,没有就不用设置!");
        // 写于父类中的公共字段
//        strategy.setSuperEntityColumns("id");
        strategy.setInclude(this.tables.split(","));
        strategy.setControllerMappingHyphenStyle(true);
        strategy.setTablePrefix(pc.getModuleName() + "_");
        mpg.setStrategy(strategy);
        mpg.setTemplateEngine(new FreemarkerTemplateEngine());
        mpg.execute();

        File delFile = new File(delXmlPath);
        delFile.delete();
    }

}
